摘要：This article has for main purpose to discuss about the main variables that influenced the Investment in Brazil from 1995 to 2005. The importance of the investment and the alternatives in debate for its growth will be analyzed. From the neoclassic and Keynesian theory of investment, it was formulated a regression model that shows the relation of these variables to investment. The regression showed significant results for GDP, for the interest rate and for the inflation rate. The obtained signs are in agreement with the economic theory. The inflation rate influences the investment more negatively than the own interest rate. The economic stability seems to be still the most important subject for the investor.
